Router with built-in ATA

I was a Giganet customer for a couple of years until they switched my connection to CGNAT which broke all of my dynamic DNS host name stuff so I jumped ship to Plusnet instead. Giganet supplied a Technicolr DGA4314 router which I've continued to use with Plusnet as I like the fact that it has a built-in ATA which I make use of as well as 4 LAN ports, all of which are in use.
Giganet have now asked me to return the router. I did ask them how much they would charge me to buy it rather than return it but that question confused the hell out of them. Their website states that if I fail to return the router a charge may be incurred but when I pushed they still couldn't answer if indeed a charge would be made or what it would be.
I've seen a few DGA4134s on ebay ranging from £30-£50 but before I do that is there any other router out there that is readily available, has dual band wifi, 4 usable LAN ports and a built-in ATA? I know I could just use the Plusnet router that was supplied with an external ATA but I like the neatness of a one box solution.
Any suggestions welcome!

How about a Technicolor DGA0122 ?
Mine was supplied by my ISP, Andrews & Arnold with my FTTP.
Besides 2 VoIP for two numbers - both have to be with the same VoIP supplier, it is happy at 1GB/s download. Dual band WiFi and 4 LAN ports with a separate port for connection to the Openreach ONT.

Cheers!

Zyxel have a fairly large range, AAISP have a setup guide here
https://support.aa.net.uk/VoIP_Phones_-_Zyxel_VMG/DX...

Fritz!box 7530 is worth looking at, I use this with VOIP, it has a phone socket on which can be connected to standard phones and also a DECT basestation which I use. Also MESH is available.
Plenty of used ones mainly originally supplied by ZEN on eBay.

Thanks for the suggestions. I did look at the Fritzbox but that only has 3 usable LAN ports with the 4th being used for the WAN input so I'd have needed a switch and that defeats the idea of a one box solution. Zyxel looked interesting but pricey from what I could see, I just ended up going for another DGA4134 off ebay described as brand new never used for £45 so that will do nicely.